On 5/5/2017 7:54 PM, Bald Eagle wrote:
> "Bald Eagle" <cre### [at] netscapenet> wrote:
> and
>> do any of the celestial objects have a secondary rotation - a wobble, if you
>> will, of their primary axis of rotation?
>
> and
>
> https://en.wikipedia.org/wiki/Axial_precession
>
>
> Must
> Learn
> Something
> Every
> Day
>
>

Yes, very interesting. When you stop learning you stop living.
Metaphorically speaking.

I've heard of Planet X and Planet 9 but I have not read how its 
existence was deduced.
Thanks for that.

> "... However, due to the gradually increasing luminosity of the Sun, the oceans
> of the Earth will have vaporized long before that time (about 2,100 million
> years from now)."
>
> Hmmmm....
>
>
You weren't planning to be around for it, were you? :)

-- 

Regards
     Stephen

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